/**
 * MCP transport actions — require server roundtrip via MCP protocol.
 */
import type { Action, ActionJSON } from './types.js';
export interface CallToolOpts {
    arguments?: Record<string, unknown>;
    resultKey?: string;
    onSuccess?: Action | Action[];
    onError?: Action | Action[];
}
/**
 * Invoke an MCP tool from the UI.
 * Used in Form.onSubmit or Button.onClick to call backend tools.
 */
export declare class CallTool implements Action {
    readonly tool: string;
    private readonly opts?;
    constructor(tool: string, opts?: CallToolOpts | undefined);
    toJSON(): ActionJSON;
}
export declare class SendMessage implements Action {
    readonly message: string;
    constructor(message: string);
    toJSON(): ActionJSON;
}
export declare class UpdateContext implements Action {
    readonly context: Record<string, unknown>;
    constructor(context: Record<string, unknown>);
    toJSON(): ActionJSON;
}
export type DisplayMode = 'inline' | 'fullscreen' | 'pip';
export declare class RequestDisplayMode implements Action {
    readonly mode: DisplayMode;
    constructor(mode: DisplayMode);
    toJSON(): ActionJSON;
}
//# sourceMappingURL=mcp.d.ts.map